Double-acting deep-well pump.



R. E. L. HOLMES. `D`OUBLE ACTING DEEP WELI PUMP. APPucArlon' nien 05cm. me.

ATTORNEY 5mm: mmmmmnmlmmmx.

L To all whom 'it may concern:

ROBERT E. L. HOLMES, F BEAVER'FALLS, PENNSYLVANIA.

DGUBLE- ACTNG DEEP-WEIIL PUMP.

Specification of Letters Patent.

Patented Nov. 20, 1917.

4Application led December 21, 1916. I Serial No. 138,238.

Be it known that I, ROBERT E. L. Hommes,

'a citizen of the'- United States, residing at Beaver Falls, in the county of Beaver and State of Pennsylvania, have invented a new and useful Double-Acting Deep-Well Pump,

ofwhich the following is a specification.`

This invention has reference to doubleacting deep well pumps,"and its'object is to provide a pump barrel for deep wells e .wherein ducts of relatively large area are provided for the passage of water, so that friction to the passage of water 1s .reduced and the power needed in pumping is correvspondingly reduced.

In accordance with the invention working barrels are arranged in tandem with the lower barrel of less diameter than the upper barrel and inclosed in a casing forming a large water duct about the lower barrel, .hus doing away with the necessity of a hollow pump rod .and providing a water duct of relatively large area. The two workingbarrels contain connected pump plungers individual to the respective barrels, and the entire structure is so arranged that all .working parts requiring inspection land repair from time to time may be bodily rel moved from the pump cylinder through the column pipe without disturbing the working barrels or other fixed parts of the device.

The invention will be best understoodv from a considerationof the following detailed description, taken in connection with the accompanying drawings .,forming part of this specification, with the further understanding that while th' drawings show a practical form of the invention, the llatter is not confined to strict conformity' with the showing of the drawings, but may be changed and modified so long as such changes and modifications come within the scope of the appended claims.

In the drawings Figure 1 is a longitudinal vertical section of a double-acting deep well pump in the installed position. n

Fig. 2 is a section -on the line 2-2 of Fig. 1.

' ig. 3 is a section on the line 3 3 of Fig. 1. Fig. 4 is a vertical diametricsection'of a barrel head to which the adjacent ends of theworking barrels are connected, and also carrying the casing exterior to the lower working barrel.

Fig. 5 is a section on the line 5-5 of Fig. 1.'

stalled position. l .screw threads 9 at the lower end carrying l Referrin to the drawings, there is shown a column plpe 1, which, in the installed posi-` y Aation, stands upright, and to the bottom end of this column pipe there is connected a coupling 2 constituting the top couplin of the pump. The coupling 2, whieh'may e a v reducing coupling, has the upper end of a working barrel 3 screwed therein, such working barrel constituting the upper or top working barrel of the pump, vthe expres sions of position having to do with the installed pump.

The lower end of the barrel3 is screwed into and carries a coupling 4 comprising spacedrings 5, 6 with circularly spaced connecting webs 7. The ring is internally threaded for the reception of the barrel 3 and externally threaded for the reception of the upper end of a casing tube 8 in pendent relation to the ring 5 and exterior to the webs 7 which latter are upright in the in- The ring 6 has interior another working barrel 1.0 in pendent relation thereto and interiortoand concentric with the casing 8, leaving a circular space or chamber 11 about the barrel 10 and between it and the casing 8. The coupling 4 is of such diameter that the outer wall of the casing 8 coincides substantially in diameter with the exterior of thecoupling 2, so that the column pipe and pump cylinder may be readily lowered into a well within the ordinaryv xed well casing, which latter, however, is not shown in the drawings. The upper end ofthe ring 6 is formed with a taper seat 12 for a removable head 13 forming a head for the working barrel 10 constituting the lower or bottom working barrel of the pump. The sent 12 and the exterior of the head 13 are correspondingly tapered with the taper suliiciently steep so that the head maybe tightly'force'd into theseat foot valve for the pump. The valve 17 is movable along a stemlS rising from the body 16 and provided at its upper end with a. taper screw 19 for 'a purposewhich will presentlyappeal". The seat 15 and valve body 16 are'suitably tapered, so that the dental displacement, buton the application of a suitable force may be removed from the seated position. f i

Lodged in the upper or top working barrel is a plunger 18a provided with a check valve 19, which plunger may be taken as typical of any one of a number of'commercial forms of plungers, whether provided with a disk, ball or conical valve, the disk form being shown, but all such forms 0f valves being in common use. In the lower or bottom working barrel is another plunger 20, which, however, is a valveless plunger' in the particular showing of the drawings. The plunger 20 has its body portion provided with a threaded socket 21 adapted t0 the threaded stem 19, so that the plunger may be coupled to the valve body 16 for introduction of the latter into the seat 15, or

its removal therefrom.

The two plungers 18a and 20 are coupled together by a 'pump rod 22 extending through the head 13 and there surrounded by suitable packing 23 held in place by a gland 24 and nut 25 threaded into the head 13.

lSecured to the top plunger 18a is a sucker rod 26 which may be assumed to extend to the top of the well for the actuation of the pump plungers.

The two plungers are shown as provided with the usual cup leathers 27, or other suitable packing may be employed in accordance with the particular character of plunger.

In the structure shown the upper or top Working barrel is of greater internal diameter than the lower or bottom working barrel,

and the top and bottom plungers correspondingl-y differ in diameter.` The head 13 is of such diameter that it maybe moved through the barrel 3 and the `foot valve body 10 is of such diameter that lit may be moved through the barrel 10. With such a structure it is quite feasible to entirely remove all thevalves and plungers when necessary for inspection or repairs without disturbing the'working barrels in any way and the valve and plunger structures may be as read-.

p ily introduced into :the working barrels and the foot valves seated Without disturbing the working barrels. A

:VVhen the plunger-s are lifted water -is drawn throughv the foot valve into both'y working barrels, the plunger 20 drawing the water into the Working barrel 10 through `fits lower open end and the plunger-,i718v drawn Aing water into the barrel-3 by way of the thus drawn into the pump on the up stroke.

On the down stroke the yalvevd17` is seated While water in the barrel 1.0 is forced out through the lower end thereof into the chamber 11 and by the coupling 4 through the passages therein into the lower end of the barrel 3, with the water drawn into thel barrel 3 together with the water forced therein by the plunger 20 finding escape past the valve 19'h1 which moves to the open position on the down stroke of the plunger.

All the water passages are large and offer a minimum of frietional resistance to the flow of Water through them, wherefore the Water moves with less speed than is usually the case where the water must iiow through a hollow pump rod.

lVith the structure. described the water passages are all large in proportion to the area of the plungers, thus permitting the pump to be run at maximum speed while preventing excessive speed of travel of water through the passages, so that because oi?- the reduced frictional resistance there is i reduction of power necessary to force the water through the passages with a consequent saving of power, i V

The structure permits the use of thei ordinary disk valve, as shown.l or .ball valves or conical valves at the suction entrance. and

in the top plunger with practicallyl nov changes in their construction from "such valves as used in single acting working barrels.

There is a liability of water 'leaking past the packing of the plunger Q0 and becoming imprisoned in the cylinder 10 between the plunger 2() andthe head 13. To avoid the effect of such leakage the plunger 2O is provided with means for the escape of any water that may find its way above the plunger 20. Continuing axially from the socket 21i is a chamber Q8 having a hollow. nut Q9 screwed thereinto, and within this chamber is' contained a ball valve 30 and a spring 31 at one end engaging the nut 29 and at the other end normally seating againstl the'upper end of the chamber 28. Leading from the chamber 28 are passages 32 opening through the tqp of the plunger Q0 into the interior of the lcylinder 10, the valve 30 normally closing these passages from vcommunication with lthe chamber 28.

i Should waterleak past the leathers on the plunger 2O then on the up stroke of the plunger the water so leaking, if in sutlicient quantity, will exert a greater pressure on top of the`4 piston thanis exerted by the water on the under side of the piston, whereupon the valve 30 will yield and the' superior pressure on the water above the piston will cause it tompass through the passages 32 and escape through the plunger. VVhat`is claimed is:

1. A deep well, pump having upper and lower working barrels, a couplingy comprismg two spaced rings with longitudinal conanemie necting webs, one ring being of greater diameter'than the other and-threaded both on the interior and exterior and the smaller ring having a threaded interior and formed with an internal taper seat spreading toward the first-named ring, a working barrel having its lower endvv entering the thread-I ed interior portion of the larger ring, another working barrel entering the threaded interior portlon of the smaller ring below the taper seat, a casing tube connected to the outer threaded portion of the larger ring and hanging therefrom, a coupling carried by the lower end of the casino' tube and provided with an interior tapered valve seat, a sucker vrod extending through the upper working barrel and there carrying a valved plunger, another plunger in the lower working' barrel and carried by the sucker rod, a foot valve in the coupling oar- -ried by the casing, and ahead adapted to i the taper seat in lthe rst-named coupling and provided with packing means traversed by the sucker rod, the lower working barrel having its lower end open and spaeed from the coupling vcarried bythe lower end ofthe casing tube, and said casing tube bein 'spaced from the lower working barrel an communicating through the first-named coupling between the two rings thereof with the upper working barrel. l

2. A deep well pump having upper and lower working barrels, a coupling comprising two spaced rings with longitudinal connecting webs, one ring being of greater diameter than the other and threaded both on the interior and exterior and the smaller ring having a threaded interior and formedv with an internal vtaper seat spreading toy ward the first-named ring, a working barrel having its lower end enteringthe threaded interior portion of the larger ring, another working barrel entering the threaded interior portion of the smaller ring below the taper seat, a easing tube connected to the outer threaded portion of the larger rin 0 and hangin therefrom a cou lin carried r by' the lower end of the casing tube and provided with an interior tapered valve `l seat, a sucker rod extending through the upper working barrel and there carrying a valved plunger, another plunger in the lower Gopiee of this patent may be obtained for ve cents eaohpby addressing; Washington, El.

working barrel and carried bythe sucker rod, a foot valve in the coupling carried by the casing, and a head adapted'to the taper seat in the first-namedoupling and pro vided with. packing means-traversed by the sucker rod, the lower workingbarrel hav ingits lower'end openfand spaced from the coupling carried by; the -lower-'endg'of the casing tube, andl said .casing tube bein -spaced from the lower working barrelran communicating through the 'first-named coupling between the two rings thereof with the-upper working barrel, and said plunger in the lower working barrelhaving a nor- ,mally closed yieldable relief?. valve therein, 'whereby packing of air orwaterA between the plunger and the packingrhe'ad at vtheupper end of the lower working barrel is prevented. e 1

3.A deep well pump comprising upper provided with a relief valve forthe escapethrough the plunger of liquid leaking vpast the plunger into the portionof` the lower barrel above it, and said relief valve havin ieldable means associated therewith ten lng to maintain the valve in the closedposll-l tion.A y

4and lower working barrels with connect@ plungers in the barrels and individually thereto, the upper plunger having a valved port for the up. passage of liquid therethrough and the lower barrel abovethe lower plunger being permanently closed, the lower plunger having a passage for the escape of liquid, therethrough with a spring and lower working barrels with the' lower.

4'. A Vdeep well pump comprifsing upper 4 controlled relief valve in the passage openingtor the downward How of liquid on the -establishment above the plunger of apredetermined pressure.

Inttestimony that I claim the foregoing as my own, I have `hereto axed my signa ture in the presence of two witnesses.

Bonner n. n Hennes.'

Witnesses:

F. F. Cormano, H. N. Krrron, y

the Commiatoner et Eatenta, 

